20-9w=4(15-w)

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Solution for 20-9w=4(15-w) equation:


Simplifying
20 + -9w = 4(15 + -1w)
20 + -9w = (15 * 4 + -1w * 4)
20 + -9w = (60 + -4w)

Solving
20 + -9w = 60 + -4w

Solving for variable 'w'.

Move all terms containing w to the left, all other terms to the right.

Add '4w' to each side of the equation.
20 + -9w + 4w = 60 + -4w + 4w

Combine like terms: -9w + 4w = -5w
20 + -5w = 60 + -4w + 4w

Combine like terms: -4w + 4w = 0
20 + -5w = 60 + 0
20 + -5w = 60

Add '-20' to each side of the equation.
20 + -20 + -5w = 60 + -20

Combine like terms: 20 + -20 = 0
0 + -5w = 60 + -20
-5w = 60 + -20

Combine like terms: 60 + -20 = 40
-5w = 40

Divide each side by '-5'.
w = -8

Simplifying
w = -8

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